coffin



HMI/ww M, /if/ NIPETERS, PHOTO-LITHOGRAPHER, WASHINGTON, D C

UNITED STATES PATENT OFFICE.

D. N. B. COFFIN, JR., OF NEVTON CENTER, MASSACHUSETTS, ASSIGNOR TO BOSTON FAUCET COMPANY.

FAUCET.

Specification of Letters Patent No. 17,604, dated June 16, 1857.

To all whom it may concern:

Be it known that I, DAVID N. B. CoFFIN, Jr., of Newton Center, in the county `of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Faucets; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, which form a art of this specification, and to the letters o reference marked thereon.

These improvements relate to the means for operating the valve, and mainly consist of an annular series of lifters or an inclined surface or surfaces arranged upon a ring acting by and with the aid of a guide upon a removable pin in the valve-stern. The lifters being hung upon a pivot or resting flatly on the cap of the faucet, with or without an inclined surface above the pin by which to close the valve and hold it to its seat.

Index to the drawtngs.-Figure l is a vertical section of a faucet with my improvements applied, a part of the valve-stem and the pin being shown in full. Fig. 2 is an elevation of the guide broken-from the cap, the view being taken at right angles with that of Fig. l. Fig. 3 shows a section of the series of inclines or lifters with a sectional elevation of the knob for operating the same. Fig. 4 is a plan of the lifters. Fig. 5 is a plan of the guide and the cap of the faucet, to which it is attached. Fig. 6 is a side elevation of the faucet complete. Fig. 7 is a sectional elevation, and Fig. 8 is ditto, viewed at right angles, and Fig. 9 a plan of an arrangement of parts slightly didering in construction from that of the foregoing figures. Fig. l0 is a section of the series of lifters and of a pair of handles instead of the knob for operating them. Fig. 11 shows in a vertical section a single handle for the same purpose. Fig. 12 is a perspective view showing the valve stem, guide, pin, and lifter with the addition of an incline above the pin, by which the valve may be forced down, &c.

Description with reference to the drawings.- The body of the faucet is marked a and the valve b. The water enters at c, and when the valve is lifted from its seat, escapes through d.

e is a rubber spring, which closes the valve when it is not forced open and also prevents leakage at the joint of the cap and around the valve-stem, as shown in a previous `patentgranted to me.

f is the cap or gland. Upon this cap is cast or otherwise secured the guide g. In this guide are slots which' allow the pin 71, to play up and down freely with the valvestem t, in which it is soplaced that its ends may project beyond the outer surface of guide g. Y

y' is an annular piece fitted loosely around g and has one, or aseries of two or more inclined surfaces or Vlifters formed on its upper edge. The hi hest point of these inclines'is of such ane evation that when the pin h rests thereon the valve will be raised from its seat sufficiently to give the full reqluisite flow of water, and the lowest part so ow that the pin h will not quite rest upon it when the valve rests upon its seat. An inverted cup-shaped piece 7c is fitted to y' and secured by two screws or pins l. Its upper part is formed into a knob, as in Figs. 1, 3, 6, or has attached a handle, as in Fig. 11, and has also a pivot m.

n, is a step which supports pivot m, and rests on guide g.

When the faucet is to be ut together, the valve b, and spring e, are st put in their place, then the gland or cap f is screwed down to its place, a hole is then made through the valve-stem corresponding to the osition of the slots in the uide g, (or if the ole in the valve-stem is a ready made, it should be so placed that when the ca is screwed down it will coincide with the s ots in the guide), then the pin is slipped through the slots and the hole in the valve-stem, and step n, placed upon g, after which 7c, is dropped on over the whole and secured to y', as described. The pin h, can not then get out of place even if it were loose in the valve-stem.

The operation is as follows: The hand being applied to the knob or handle, turns 7c, either way when the lifters on j begin to act on the pin h, and the guide g preventing it with the valve-stem from being turned around the valve is thereby lifted from its seat until the pin has reached the highest point of the inclines, when if turned either way it will close again, or if left on either incline it will close of itself by the force of the spring. A slight notch may be formed on the elevation between two inclines on j, so that the valve may remain open without the trouble of holding on, if desired. The ivot m may be dispensed with, as when the handles are applied directly to the lifters, see Fig. 10, in which case rests directly upon the cap f, but will not Work quite so free as when supported by pivot m.

Figs. 7, 8, and 9 show a modification, by means of which no care is required in screwin down the gland f, to have the hole in the va ve-stem coincide with the slots in the guide to allow the pin to pla up and down freely in them. But the va ve-stem has a groove around its upperV end and the pin is made in two parts, which are held in piece o, their inner ends pla 'ng in the groove in the valve stem and t e outer ends being acted on by the lifters as before described. In this case the uide is adapted to the piece A0 instead of t e pin.

In Fig. 12, p is the part corresponding to y' in the other fifrures and has an inclined part above as welll as below the pin h. The part above forces the valve down in like manner, as the art below lifts 'it up. The pins g are to ho d p down, and prevent its rising when turned, so as to force the valve down.

With these improvements the knob may be turned either Way or be lifted up, and in either case the valve will be opened with equal certainty, except when arranged as in Fig. 12, for locking down the valve, in which case by turning one way the valve is lifted up, but by turning the other way it is closed and locked down. y

The number of inclines, as well as the degree of inclination can, of course, be varied according to circumstances.

I-Iavin thus described my improvements, what I cIaim as my invention and desire to secure by Letters Patent, is as follows:

1. The combination of the annular lifter or lifters, guide, and in, ,substantially as described, with or wit out the top incline for closing the valve shown in Fig. 12.

2. I also claim pivoting the annular lifter or lifters at m.

March 3d, 1857.

DAVID N. B. COFFIN, JR.

Witnesses:

Z. E. COFFIN, I. D. SPAULDING. 

